Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1999ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYKEYLESS ENTRY TRANSMITTERTESTING AND INSPECTION
1999 Chevrolet Astro Van 2WD V6-4.3L VIN W
Keyless Entry Transmitter: Testing and Inspection
1999 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Testing and Inspection
Using both transmitters, if available, perform the following procedure in order to diagnose all of the transmitter functions:
1. Resynchronize the transmitters to the receiver. Refer to Transmitter Synchronization. Service and Repair
2. Move the vehicle as far away from metal objects as possible.
The RKE system may not operate if there are metal objects between the transmitter and the vehicle.
3. Lower the windows.
4. Turn OFF the ignition.
5. Close the doors.
6. While standing at the rear bumper, aim the top of the transmitter at the vehicle.
Operate all of the functions on both transmitters, if available. Observe the results and make the necessary repairs, as follows:
^ If a single function on 1 transmitter is inoperative, replace that transmitter.
^ If all of the functions on 1 or both transmitters are inoperative, reprogram both transmitters and repeat Step 7. Refer to Transmitter Programming. Service and Repair
^ If you cannot reprogram 1 transmitter, replace the battery in that transmitter. Refer to Transmitter Battery Replacement.
^ If all of the functions on both transmitters operate, stand 1.5 meters (5 ft) from the vehicle and check the operation of both transmiffers at several points around the vehicle.
If 1 transmitter does not operate from a point where the other transmitter functions correctly, replace the battery in the transmitter that does not operate. Refer to Transmitter Battery Replacement. Service and Repair
^ If both transmitters operate 1.5 meters from the vehicle, the system is operating properly. Do not attempt any repairs to the system.
For additional diagnostic information on the RKE module, refer to the RKE System Check. Testing and Inspection
1. Resynchronize the transmitters to the receiver. Refer to Transmitter Synchronization. Service and Repair
2. Move the vehicle as far away from metal objects as possible.
The RKE system may not operate if there are metal objects between the transmitter and the vehicle.
3. Lower the windows.
4. Turn OFF the ignition.
5. Close the doors.
6. While standing at the rear bumper, aim the top of the transmitter at the vehicle.
Operate all of the functions on both transmitters, if available. Observe the results and make the necessary repairs, as follows:
^ If a single function on 1 transmitter is inoperative, replace that transmitter.
^ If all of the functions on 1 or both transmitters are inoperative, reprogram both transmitters and repeat Step 7. Refer to Transmitter Programming. Service and Repair
^ If you cannot reprogram 1 transmitter, replace the battery in that transmitter. Refer to Transmitter Battery Replacement.
^ If all of the functions on both transmitters operate, stand 1.5 meters (5 ft) from the vehicle and check the operation of both transmiffers at several points around the vehicle.
If 1 transmitter does not operate from a point where the other transmitter functions correctly, replace the battery in the transmitter that does not operate. Refer to Transmitter Battery Replacement. Service and Repair
^ If both transmitters operate 1.5 meters from the vehicle, the system is operating properly. Do not attempt any repairs to the system.
For additional diagnostic information on the RKE module, refer to the RKE System Check. Testing and Inspection
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.